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← ScienceWhich consequence results when a pulsed laser's coherence length exceeds calibration cavity length in CRDS?
A)Reduced measurement sensitivity overall
B)Improved temporal resolution achieved
C)Complete destructive interference results
D)Mode beating artifacts are amplified✓
💡 Explanation
Laser coherence beyond the CRDS cavity initiates mode beating, because multiple cavity modes interfere non-constructively; therefore, artifacts intensify, rather than sensitivity improves or complete destructive interference occurring, a shorter cavity length would produce fewer modes.
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